CBS’ Supergirl has cast its Lucy Lane in the upcoming TV series. Entertainment Weekly reports Jenna Dewan-Tatum (The Witches of East End, American Horror Story) will star in the recurring role, beginning with the third episode. Jenna Dewan-Tatum (image via IMDB)The character Lucy Lane first appeared way back in DC’s Silver Age Superman’s Pal Jimmy Olsen comic book series.